TI-2026-84121 Aliases CVE-2026-115403

NULL pointer dereference in Eclipse ThreadX NetX Duo raw IPv6 send

LOW 36CWE-252Published 2026-11-02 · Updated 2026-11-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

Eclipse ThreadX NetX Duo from 6.0 through 6.5.2.202603a, built with BSD raw socket and IPv6 support, is affected. The IPv6 raw send path does not check whether its destination-table add succeeded (CWE-252). When the table is full, sending on a raw IPv6 socket dereferences a NULL pointer, and a remote sender can fill the table with ICMPv6 Packet Too Big messages to crash the sending thread.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603a, built with BSD raw socket and IPv6 support, the IPv6 raw send path uses the destination-table entry it adds without checking that the add succeeded. When the destination table is full and an off-link destination is reached through a default router whose neighbour cache entry is unknown, sending on an IPv6 raw socket with header inclusion dereferences a NULL pointer; a remote sender can fill the table, for example with ICMPv6 Packet Too Big messages, and crash the sending thread.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00324 25th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Eclipse Foundation	Eclipse ThreadX	6.0 – 6.5.2.202603a	—	No fix listed	CNA

Eclipse ThreadX VendorEclipse Foundation Affected 6.0 – 6.5.2.202603a Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Eclipse ThreadX.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Timeline

2026-11-02 Threatist record created from CVE-2026-115403
2026-11-04 Priority changed: MEDIUM → LOW
2026-11-06 CISA SSVC decision points changed

References

Other 2

TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
TI-2026-81947 Unauthenticated command injection in Eclipse Che che-machine-exec CVSS 3.1CRITICAL 9.8
TI-2026-13216 CWE-863: ABAC authorization bypass via trailing slash route normalization in Eclipse BaSyx Go Components CVSS 3.1CRITICAL 9.8
TI-2026-06514 Path traversal in Eclipse BaSyx CVSS 3.1CRITICAL 10.0
TI-2026-01382 In the Eclipse Theia Website repository, the GitHub Actions workflow… CVSS 3.1CRITICAL 10.0
TI-2026-74697 Authentication bypass in Eclipse Jetty EthereumAuthenticator CVSS 4.0CRITICAL 9.3

See all 466 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences